src/llvm/include/llvm/Support/DataTypes.h.in

   1 /*===-- include/Support/DataTypes.h - Define fixed size types -----*- C -*-===*\
   2 |*                                                                            *|
   3 |*                     The LLVM Compiler Infrastructure                       *|
   4 |*                                                                            *|
   5 |* This file is distributed under the University of Illinois Open Source      *|
   6 |* License. See LICENSE.TXT for details.                                      *|
   7 |*                                                                            *|
   8 |*===----------------------------------------------------------------------===*|
   9 |*                                                                            *|
  10 |* This file contains definitions to figure out the size of _HOST_ data types.*|
  11 |* This file is important because different host OS's define different macros,*|
  12 |* which makes portability tough.  This file exports the following            *|
  13 |* definitions:                                                               *|
  14 |*                                                                            *|
  15 |*   [u]int(32|64)_t : typedefs for signed and unsigned 32/64 bit system types*|
  16 |*   [U]INT(8|16|32|64)_(MIN|MAX) : Constants for the min and max values.     *|
  17 |*                                                                            *|
  18 |* No library is required when using these functions.                         *|
  19 |*                                                                            *|
  20 |*===----------------------------------------------------------------------===*/
  21
  22 /* Please leave this file C-compatible. */
  23
  24 /* Please keep this file in sync with DataTypes.h.cmake */
  25
  26 #ifndef SUPPORT_DATATYPES_H
  27 #define SUPPORT_DATATYPES_H
  28
  29 #undef HAVE_INTTYPES_H
  30 #undef HAVE_STDINT_H
  31 #undef HAVE_UINT64_T
  32 #undef HAVE_U_INT64_T
  33
  34 #ifdef __cplusplus
  35 #include <cmath>
  36 #else
  37 #include <math.h>
  38 #endif
  39
  40 #ifdef HAVE_INTTYPES_H
  41 #include <inttypes.h>
  42 #endif
  43
  44 #ifdef HAVE_STDINT_H
  45 #include <stdint.h>
  46 #else
  47 #error "Compiler must provide an implementation of stdint.h"
  48 #endif
  49
  50 #ifndef _MSC_VER
  51
  52 /* Note that this header's correct operation depends on __STDC_LIMIT_MACROS
  53    being defined.  We would define it here, but in order to prevent Bad Things
  54    happening when system headers or C++ STL headers include stdint.h before we
  55    define it here, we define it on the g++ command line (in Makefile.rules). */
  56 #if !defined(__STDC_LIMIT_MACROS)
  57 # error "Must #define __STDC_LIMIT_MACROS before #including Support/DataTypes.h"
  58 #endif
  59
  60 #if !defined(__STDC_CONSTANT_MACROS)
  61 # error "Must #define __STDC_CONSTANT_MACROS before " \
  62         "#including Support/DataTypes.h"
  63 #endif
  64
  65 /* Note that <inttypes.h> includes <stdint.h>, if this is a C99 system. */
  66 #include <sys/types.h>
  67
  68 #ifdef _AIX
  69 #include "llvm/Support/AIXDataTypesFix.h"
  70 #endif
  71
  72 /* Handle incorrect definition of uint64_t as u_int64_t */
  73 #ifndef HAVE_UINT64_T
  74 #ifdef HAVE_U_INT64_T
  75 typedef u_int64_t uint64_t;
  76 #else
  77 # error "Don't have a definition for uint64_t on this platform"
  78 #endif
  79 #endif
  80
  81 #else /* _MSC_VER */
  82 #include <stdlib.h>
  83 #include <stddef.h>
  84 #include <sys/types.h>
  85 #ifdef __cplusplus
  86 #include <cmath>
  87 #else
  88 #include <math.h>
  89 #endif
  90
  91 #if defined(_WIN64)
  92 typedef signed __int64 ssize_t;
  93 #else
  94 typedef signed int ssize_t;
  95 #endif /* _WIN64 */
  96
  97 #ifndef HAVE_INTTYPES_H
  98 #define PRId64 "I64d"
  99 #define PRIi64 "I64i"
 100 #define PRIo64 "I64o"
 101 #define PRIu64 "I64u"
 102 #define PRIx64 "I64x"
 103 #define PRIX64 "I64X"
 104 #endif /* HAVE_INTTYPES_H */
 105
 106 #endif /* _MSC_VER */
 107
 108 /* Set defaults for constants which we cannot find. */
 109 #if !defined(INT64_MAX)
 110 # define INT64_MAX 9223372036854775807LL
 111 #endif
 112 #if !defined(INT64_MIN)
 113 # define INT64_MIN ((-INT64_MAX)-1)
 114 #endif
 115 #if !defined(UINT64_MAX)
 116 # define UINT64_MAX 0xffffffffffffffffULL
 117 #endif
 118
 119 #ifndef HUGE_VALF
 120 #define HUGE_VALF (float)HUGE_VAL
 121 #endif
 122
 123 #endif  /* SUPPORT_DATATYPES_H */